Finally found Japanesse Tanaka patent for Current Amplifier (CA) and winding configuration.
Guess what coil configuration Japanesse had been used in CA ? Partnered coils !
Experimentally confirmed that current from I=10-8A (10nA) change magnetic flux densiy to 100Gauss (0,01T).
It means we have deal with Amplification coefficient of 1 Billion times (180dB). And all of these thanks to complex spin structure of magnetic conductor made from Manganese magnet and Amplifying dielectric element made from Carbon.
Магнитопровод из Манганина сплава меди 85 % , с добавкой марганца 11,5% и никеля 3,5 %
Manganese = alloy of 85 % Copper, 11,5% Mangan and 3,5% Nickel.